<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- card视图区域 -->
    <el-card>
      <!-- 警告信息 -->
      <el-alert
        title="消息提示的文案"
        type="info"
        center
        show-icon
        :closable="false"
      >
      </el-alert>
      <!-- 步骤条区域 -->
      <el-steps
        :space="200"
        :active="activeIndex - 0"
        finish-status="success"
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <!-- tab区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="100px"
        class="demo-ruleForm"
        label-position="top"
      >
        <el-tabs
          :tab-position="'left'"
          v-model="activeIndex"
          :before-leave="beforeTabLeave"
          @tab-click='tabClicked'
        >
          <el-tab-pane
            label="基本信息"
            name='0'
          >
            <el-form-item
              label="商品名称"
              prop="goods_name"
            >
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item
              label="价格"
              prop="goods_price"
            >
              <el-input
                v-model="addForm.goods_price"
                type="number"
              ></el-input>
            </el-form-item>
            <el-form-item
              label="数量"
              prop="goods_number"
            >
              <el-input
                v-model="addForm.goods_number"
                type="number"
              ></el-input>
            </el-form-item>
            <el-form-item
              label="重量"
              prop="goods_weight"
            >
              <el-input
                v-model="addForm.goods_weight"
                type="number"
              ></el-input>
            </el-form-item>
            <el-form-item
              label="商品分类"
              prop="goods_cat"
            >
              <el-cascader
                expand-trigger="hover"
                v-model="addForm.goods_cat"
                :options="cateList"
                :props="cateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane
            label="商品参数"
            name='1'
          >
            <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
              <el-checkbox :label="cb" v-for="(cb, i) in item.attr_vals" :key="i" border></el-checkbox>
            </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane
            label="商品属性"
            name='2'
          >
            <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane
            label="商品图片"
            name='3'
          >
            <el-upload
              :action="uploadUrl"
              :headers="headerObj"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              :on-success="handleSuccess"
              list-type="picture">
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane
            label="商品内容"
            name='4'
          >
          <!-- 富文本编辑器 -->
          <quill-editor
            v-model="addForm.goods_introduce"
          />
          <!-- 添加商品按钮 -->
          <el-button type="primary" @click="add">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
    <!-- 图片预览 -->
    <el-dialog
      title="图片预览"
      :visible.sync="previewImgVisible"
      width="50%">
      <img :src="previewImg" alt="" class="prevImg">
    </el-dialog>
  </div>
</template>
<script>
import _ from 'lodash'
export default {
  data() {
    return {
      activeIndex: 0,
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_number: 0,
        goods_weight: 0,
        goods_cat: [],
        // 上传图片临时路径
        pics: [],
        // 商品介绍
        goods_introduce: '',
        attrs: []
      },
      // 商品分类列表
      cateList: [],
      // 动态参数列表
      manyTableData: [],
      // 静态属性列表数据
      onlyTableData: [],
      addFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' }
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' }
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' }
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' }
        ],
        goods_cat: [
          { required: true, message: '请选择分类', trigger: 'blur' }
        ]
      },
      cateProps: {
        label: 'cat_name',
        value: 'cat_id',
        children: 'children'
      },
      // 图片上传地址
      uploadUrl: 'http://127.0.0.1:8888/api/private/v1/upload',
      // 图片上传组件的上传头属性
      headerObj: {
        Authorization: window.sessionStorage.getItem('token')
      },
      // 图片地址
      previewImg: '',
      // 图片上传对话框
      previewImgVisible: false
    }
  },
  created() {
    this.getCateList()
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    }
  },
  methods: {
    async getCateList() {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取分类列表失败')
      }
      this.cateList = res.data
      // console.log(this.cateList)
    },
    // 级联选择器选中时触发
    handleChange() {
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    // tab跳转时
    beforeTabLeave(activeName, oldActiveName) {
      if (oldActiveName === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('请选择商品分类')
        return false
      }
    },
    async tabClicked() {
      // alert(1111)
      if (this.activeIndex === '1') {
        const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, {
          params: { sel: 'many' }
        })
        if (res.meta.status !== 200) {
          return this.$message.error('获取参数列表失败')
        }
        this.$message.success('获取参数列表成功')
        res.data.forEach(item => {
          item.attr_vals = item.attr_vals === '0' ? [] : item.attr_vals.split(',')
        })
        this.manyTableData = res.data
        // console.log(this.manyTableData)
      } else if (this.activeIndex === '2') {
        const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, {
          params: { sel: 'only' }
        })
        if (res.meta.status !== 200) {
          return this.$http.error('获取静态参数失败')
        }
        this.$message.success('获取静态参数列表成功')
        // res.data.forEach(item => {
        //   item.attr_vals = item.attr_vals === '0' ? [] : item.attr_vals.split(',')
        // })
        this.onlyTableData = res.data
        console.log(this.onlyTableData)
      }
    },
    // 图片预览
    handlePreview(file) {
      this.previewImg = file.response.data.url
      this.previewImgVisible = true
    },
    // 删除图片
    handleRemove(file) {
      // console.log(file)
      const filePath = file.response.data.tmp_path
      const i = this.addForm.pics.findIndex(x => x.pic === filePath)
      this.addForm.pics.splice(i, 1)
    },
    handleSuccess(response) {
      const picInfo = { pic: response.data.tmp_path }
      this.addForm.pics.push(picInfo)
      console.log(this.addForm.pics)
    },
    add() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return this.$message.error('请填写完整的表单信息')
        }
        const form = _.cloneDeep(this.addForm)
        form.goods_cat = form.goods_cat.join(',')
        console.log(form)
        // 动态参数处理
        console.log(this.manyTableData)
        console.log(this.onlyTableData)
        this.manyTableData.forEach(item => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals.join(',') }
          this.addForm.attrs.push(newInfo)
        })
        // 静态属性处理
        this.onlyTableData.forEach(item => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals }
          this.addForm.attrs.push(newInfo)
        })
        form.attrs = this.addForm.attrs
        console.log(form)
        const { data: res } = await this.$http.post('goods', form)
        console.log(res)
        if (res.meta.status !== 201) {
          return this.$message.error('添加商品失败')
        }
        this.$message.success('添加商品成功')
        this.$router.push('/goods')
      })
    }
  }
}
</script>
<style lang="less" scoped>
// .el-form-item{
//   margin-bottom: 0;
// }
.el-checkbox{
  margin: 0 10px 0 0 !important;
}
.prevImg{
  width: 100%;
}
.ql-container{
  height: 300px;
}
</style>
